/Engine/Source/Runtime/MovieScene/Public/EntitySystem/MovieSceneEntityManager.h
Entity Component data is stored in allocations organized by each unique combination of components. Each component type is stored as a contiguous array within each allocation, with each entity's component being a fixed offset from the start of each component array. This enables efficient read/write access into specific component arrays and makes issuing parallel tasks that require component data trivial. SeeFEntityAllocationfor a more detailed explanation of entity component data layout.
class FEntityManager : public [FUObjectArray::FUObjectDeleteListener](API\Runtime\CoreUObject\UObject\FUObjectArray\FUObjectDeleteListener)